[cmake] enable clang-cl and WoA builds (#348)

Compilation and CMake fixes for both Windows on ARM and clang-cl, meaning Windows can now be built on both MSVC and clang on both amd64 and aarch64.

Compiling on clang is *dramatically* faster so this should be useful for CI.

Co-authored-by: crueter <crueter@eden-emu.dev>
Co-authored-by: crueter <crueter@crueter.xyz>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/348
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/core/hle/service/lm/lm.cpp

@@ -180,7 +180,7 @@ private:
         if (length == 0) {
             return std::nullopt;
         }
-        const auto length_to_read = std::min(length, data.size() - offset);
+        const auto length_to_read = (std::min)(length, data.size() - offset);
 
         std::string output(length_to_read, '\0');
         std::memcpy(output.data(), data.data() + offset, length_to_read);